I have an iPhone, so Apple Maps is right there as an alternative (and better, since it's more integrated into things like the Contacts app and auto-recognized addresses). I find its design to be much calmer and smoother, which makes me happier. And it doesn't keep asking me to login to the Googleverse...
There are many reasons I don't use Facebook, most of which are enumerated in countless HN posts, but a big reason is that I get totally frustrated with the interface. I don't know how to say this strongly enough, but the UI literally disgusts me, to the point where I just give up and close it down. True!
Maybe I'm weird this way. But I've been computing since about 1976, and using the web since '93, and I've got no patience anymore for crappy sites/apps.